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Table 1 Mean age of coronavirus disease 2019 cases and controls distributed according to gender

From: Evaluating of the association between ABO blood groups and coronavirus disease 2019 (COVID-19) in Iraqi patients

Gender Mean age ± SD (year)
Controls All cases Recovered Deceased
Male 29.3 ± 6.9C 49.7 ± 12.3A 41.7 ± 11.1B 54.0 ± 8.8A
Female 28.6 ± 6.3C 49.9 ± 10.9A 42.6 ± 9.7B 52.7 ± 11.7A
p value 0.197 0.885 0.665 0.708
  1. SD standard deviation, p least significant difference probability for comparison between males and females
  2. Different superscript uppercase letters represent significant difference between means in rows (p value < 0.001), while similar letters represent no significant difference between means in rows (p value > 0.05) (Duncan multiple range test)